Biology

3. Element needed for formation of proteins, amino acids and nucleic acids.
4. What is the name of the meristem that produces secondary xylem.
6. Processes caused by light breaking down IAA on one side of the plant and elongation occurring on the dark side.
8. What type of sugar is present in a DNA backbone?
9. What gland produces ADH?
10. What amino acid can PKU sufferers not break down?
12. Drought is an example of a density-........ factor.
14. Are humans ectotherms or endotherms?
15. What occurs in the blood vessels when the temperature is above optimum?
17. How many carbons are there in pyruvic acid?
18. What structure in the chloroplast contains chlorphyll?

1. What type of competition occurs between members of different species?
2. Number of haploid gametes produced by one gamete mother cell multiplied by the number of ATP molecules produced by anaerobic respiration?
5. What layer synthesises alpha amylase when stimulated with GA?
7. Where does the krebs cycle take place?
9. An organism's appearance resulting from its inherited genetic information.
11. What part of the brain monitors body temperature?
13. What type of chemical reaction occurs to GP when it gains hydrogen; oxidation or reduction?
14. What do tannins inhibit in a pathogen that attack a plant.
16. What gene does the repressor molecule join to in the absence of lactose?